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Burnham PVG6NI Whistling Noise

rsc92 Member Posts: 51
I have a Burnham PVG6NI gas fired boiler. This is a power vent unit. When the t-stat calls for heat, the inducer fan starts up and I hear a whistling noise. This continues even after the gas lights, but seems to subside once the unit gets hot. I have replaced the fan gasket, but that did not help. I have also disconnected (momentarily) the exhaust ductwork, but the whistiling persists, so I know it is being caused inside the boiler itself.

Anyone know what could be causing this (or experienced and repaired this themselves)?  Thanks


  • Tim McElwain
    Tim McElwain Member Posts: 4,481
    Try spraying a little

    WD-40 on the fan blade.
  • rsc92
    rsc92 Member Posts: 51

    Thanks for the suggestion.  The noise is not the fan itself.  Take the fan out and the fan (while it is running) does not make this noise. 

    Any other thoughts??
  • Tim McElwain
    Tim McElwain Member Posts: 4,481
    Check your inlet and

    outlet gas pressure.

    Have a combustion analysis done on the unit and insure you are firing the equipment at its maximum firing rate.
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